Alert archive / Iowa / Flash Flood Watches in 2007
Flash Flood Watch 1, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood watch at Mar 14, 2007, 11:29 AM CDT for 9 counties in Iowa. It took effect at Mar 14, 2007, 12:00 PM CDT. It was in force for 28 hr.
The area
The counties it named.
The facts
- Issued
- Mar 14, 2007, 11:29 AM CDT (16:29 UTC)
- In effect from
- Mar 14, 2007, 12:00 PM CDT
- Expired
- Mar 15, 2007, 3:40 PM CDT
- In force
- 28 hr
- Issued by
- NWS Des Moines, IA
- Flood severity
- None
Counties Boone County, IA, Dallas County, IA, Emmet County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Webster County, IA
The radar
The Des Moines radar (KDMX), 101 km from the middle of the area, began a volume at 16:30 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 4.5 hours before the alert went out and 223 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 775 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this flash flood watch went out at Mar 14, 10:34 AM CDT, 55 minutes earlier.
Area forecast discussion, Mar 14, 10:34 AM CDT, 55 minutes before
AREA FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE DES MOINES IA 1026 AM CDT MAR 14 2007 .DISCUSSION... FORECAST UPDATE TO ADJUST TEMPERATURES DOWNWARD ACROSS ALL OF CWA BUT MOST SIGNIFICANTLY ACROSS THE SOUTH WHERE TEMPERATURES ARE FALLING DUE TO STRONG 925-850 HPA LAYER COLD ADVECTION. MADE SOME ADJUSTMENTS FOR CLOUD COVER AS WELL THIS MORNING AND NO OTHER SIGNIFICANT CHANGES TO CURRENT FORECAST. && .DMX WATCHES/WARNINGS/ADVISORIES...NONE. && RUSSELL
Hazardous weather outlook, Mar 14, 4:44 AM CDT, 6 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 444 AM CDT WED MAR 14 2007 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>073- 081>084-092>095-151100- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-LUCAS- TAYLOR-RINGGOLD-DECATUR-WAYNE- 444 AM CDT WED MAR 14 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TODAY AND TONIGHT MANY RIVERS...STREAMS AND TRIBUTARIES ARE AT OR NEAR BANK FULL DUE TO SNOW MELT RUN OFF. A FEW LOCATIONS HAVE OVERFLOWED THERE BANKS...FLOODING ADJACENT LOW LANDS. ICE JAMS MAY OCCUR ALONG THE SOUTH SKUNK...IOWA...RACCOON...DES MOINES AND CEDAR RIVERS PERIODICALLY WHICH COULD EXACERBATE THE FLOOD THREAT AT ANY GIVEN POINT. VARIOUS FLOOD WARNINGS AND ADVISORIES ARE IN EFFECT FOR THE AREA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY MINOR SNOW MELT FLOODING ALONG AREA RIVERS AND TRIBUTARIES WILL CONTINUE. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED BUT REPORTS OF RIVER AND STREAM FLOODING ARE APPRECIATED. IAZ074-075-085-086-096-097-151100- MARION-MAHASKA-MONROE-WAPELLO-APPANOOSE-DAVIS- 444 AM CDT WED MAR 14 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TODAY AND TONIGHT MANY RIVERS...STREAMS AND TRIBUTARIES ARE AT OR NEAR BANK FULL DUE TO SNOW MELT RUN OFF. A FEW LOCATIONS HAVE OVERFLOWED THERE BANKS...FLOODING ADJACENT LOW LANDS. ICE JAMS MAY OCCUR ALONG THE SOUTH SKUNK...IOWA...RACCOON...DES MOINES AND CEDAR RIVERS PERIODICALLY WHICH COULD EXACERBATE THE FLOOD THREAT AT ANY GIVEN POINT. VARIOUS FLOOD WARNINGS AND ADVISORIES ARE IN EFFECT FOR THE AREA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A SLIGHT CHANCE OF THUNDERSTORMS WEDNESDAY EVENING. THUNDERSTORMS ARE NOT EXPECTED TO BE SEVERE...BUT COULD PRODUCE SMALL HAIL. MINOR SNOW MELT FLOODING ALONG AREA RIVERS AND TRIBUTARIES WILL CONTINUE. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED BUT REPORTS OF RIVER AND STREAM FLOODING ARE APPRECIATED. FORSTER
In the hours before
Local storm report, Mar 14, 9:53 AM CDT, 1 hour 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
953 AM CDT WED MAR 14 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0950 AM FLOOD ESTHERVILLE 43.40N 94.83W
03/14/2007 EMMET IA EMERGENCY MNGR
RIVER AND STREAM FLOODING DUE TO SNOW MELT AND ICE JAMS
HAS CLOSED MANY ROADS ACROSS COUNTY
&&
BMOYERLocal storm report, Mar 14, 11:20 AM CDT, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1120 AM CDT WED MAR 14 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0400 AM FLASH FLOOD 4 N FORT DODGE 42.57N 94.18W
03/14/2007 WEBSTER IA EMERGENCY MNGR
ICE JAM FLASH FLOODING CAUSED RAPID RISE ON THE DES
MOINES RIVER. DAMAGED 20 TO 30 HOMES AND SEVERAL
VEHICLES.
1000 AM FLASH FLOOD FORT DODGE 42.51N 94.18W
03/14/2007 WEBSTER IA EMERGENCY MNGR
LIZARD CREEK FLASH FLOOD DUE TO ICE JAM. CAR WAS SWEEPED
OFF OF LOW WATER CROSSING. DRIVER WAS RESCUED.
&&
JJOHNSONThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 14, 11:39 AM CDT | Flash Flood Warning | DMX | Dallas | 6 hr |
| Mar 14, 12:12 PM CDT | Flash Flood Warning | DMX | Emmet | 6 hr |
| Mar 14, 6:11 PM CDT | Flash Flood Warning | DMX | Emmet | 6 hr |
Nearby
Flash Flood Watches in Iowa, 2007Every flash flood watch in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.